Aesthetic function repairing device for sealing planting screw hole and manufacturing method

Abstract

The invention discloses an aesthetic function repairing device for sealing an implant screw hole, the repairing device comprises a main body and a hole sealing body, the outer surface of the main body is in a natural tooth form, a missing site can be reconstructed to improve the aesthetic effect, the main body is perfectly fused with other natural teeth, and the inner surface is matched with a non-screw hole part of a bottom crown to ensure stable installation; one end of the hole sealing body is connected with the inner surface of the main body, and the other end of the hole sealing body cylindrically extends into the bottom crown screw hole to effectively seal the screw hole, enhance retention force, reduce falling risk and guarantee repair durability; on the basis, the invention further provides a manufacturing method of the aesthetic function repairing device for sealing the planting screw hole, the main body and the hole sealing body are manufactured through multi-step precise operation, a comprehensive and efficient scheme is provided for repairing the planting screw hole from the aesthetic and functional dimensions through the synergistic effect of the main body and the hole sealing body, and the overall quality and reliability of planting repairing are remarkably improved; the problems of poor aesthetic repair of the screw hole, obvious boundary between the hole sealing material and the dental crown and the like in the prior art are effectively solved.

Description

Technical Field

[0001] The invention relates to the field of oral restoration and implantation, and in particular to an aesthetic functional restoration device for sealing an implantation screw hole and a manufacturing method thereof. Background Art

[0002] In the field of restoration of edentulous and missing teeth, implant restoration is a common and important solution. The specific operation process is to accurately implant the implant into the alveolar bone at the tooth-missing site to replace the missing natural tooth root, and then achieve a stable connection with the base through the central screw (primary screw), and then connect the artificial crown to it with the restoration screw (secondary screw) or adhesive.

[0003] From the perspective of maintenance convenience, reserving screw holes on the crown surface is a more common method in clinical practice. This is because when screw holes are reserved on the crown surface, if complications arise in the later stage and the restoration needs to be replaced, the abutment and restoration can be removed smoothly by simply opening the screw channel without destroying the overall structure of the crown. This is relatively easy to operate. However, this method has a significant disadvantage, that is, the exposure of the screw holes will have an adverse effect on the aesthetic effect, especially in the anterior teeth area, where it is common for the screw holes to pass through the labial side of the crown, which seriously affects the aesthetics of the teeth.

[0004] In contrast, for the posterior teeth, aesthetic effects are usually not considered as the primary factor due to their relatively hidden position in the oral cavity. Therefore, in clinical practice, composite resin is often used to seal screw holes in the posterior teeth. However, composite resin itself has poor wear resistance and will age over time, which will inevitably lead to a gradual decrease in its sealing effect and cannot effectively maintain the sealing state of the screw holes for a long time.

[0005] In terms of existing patent technologies, the published patent CN210697861U "A prefabricated inlay for sealing the upper repair screw hole of a dental implant" has a "T"-shaped cross-section, and the overall shape is similar to a round cover. In actual application, when it is applied to the front teeth, due to the difference between its material and the material of the crown, and the incomplete adaptation of its own shape to the natural tooth shape, the problem of reduced aesthetic effect due to the difference in material and shape will inevitably occur. In addition, there is also the published patent CN216221750U "A sealing device for a screw-retained implant restoration", which has a cylindrical structure and needs to be used in conjunction with a composite resin to simply seal the screw hole when used. However, the material of this sealing device is not the same as that of the crown, and there must be a weak boundary between the two. This obvious boundary in structure and color makes it impossible to achieve good aesthetic and functional restoration of the screw hole, and cannot meet clinical expectations for the restoration effect. Summary of the invention

[0006] The purpose of the present invention is to provide an aesthetic functional restoration device and a manufacturing method for sealing implant screw holes. The main body and the sealing body are obtained through multi-step precise operations, which are used to solve the problems of poor aesthetic restoration effect of screw holes in the prior art and the obvious boundary between the sealing material and the crown after restoration.

[0007] The present invention is achieved through the following technical solutions:

[0008] An aesthetic functional restoration device for closing an implant screw hole, comprising:

[0009] A main body, the main body comprising an outer surface and an inner surface, the outer surface is formed with a natural tooth shape for reconstructing a missing site, and the inner surface matches a non-screw hole shape portion of the bottom crown;

[0010] A sealing body, one end of which is connected to the inner surface, and the other end of which is columnar and extends into the screw hole of the bottom crown.

[0011] In this solution, the natural tooth shape formed on the outside of the main body can accurately reconstruct the missing site, so that it can be perfectly integrated with other natural teeth in the patient's mouth in appearance, greatly improving the aesthetic effect after restoration and meeting the patient's demand for beauty. The matching design of the inner surface of the main body and the non-screw hole shape part of the bottom crown ensures the stability and accuracy of the repair device during installation, so that it can be firmly fixed on the bottom crown, effectively preventing displacement or loosening during use. One end of the sealing body is connected to the inner surface of the main body, and the other end is cylindrical and extends into the screw hole of the bottom crown. This structural design not only realizes the effective sealing of the screw hole and prevents foreign substances from entering the screw hole to affect the stability and service life of the implant, but also the sealing body extending into the screw hole also enhances the retention force of the entire repair device, reduces the risk of the repair device falling off from the bottom crown, and ensures the durability of the repair effect. Through the synergistic effect of the main body and the sealing body, the repair device provides a comprehensive and effective solution for implant screw hole repair from both aesthetic and functional aspects, improving the overall quality and reliability of implant restoration.

[0012] As a further technical solution of the aesthetic functional repair device, the sealing body is cylindrical or conical.

[0013] In this solution, the cylindrical sealing body has a relatively simple structure, and its regular shape is easy to process and manufacture. It can be inserted into the screw hole relatively stably, effectively sealing the screw hole and preventing foreign matter such as bacteria and food residues from entering, thereby protecting the health of the implant and surrounding tissues. The conical sealing body has unique advantages. Its gradually narrowing shape enables it to better adapt to the structural characteristics of the interior of the screw hole when inserted into the screw hole, forming a tighter fit with the wall of the screw hole, further enhancing the sealing effect, and preventing the sealing body from accidentally falling out of the screw hole, providing a more reliable retention force for the repair device. Both cylindrical and conical designs help to improve the overall stability and functionality of the repair device. At the same time, in terms of aesthetics, they can naturally transition with the main body and surrounding tooth structures without affecting the beauty of the overall repair effect, so that the repaired teeth can achieve a better state in appearance and function, meeting the patient's high requirements for implant restoration.

[0014] As a further technical solution to the aesthetic functional repair device, when the sealing body is cylindrical, the connecting end of the sealing body and the inner surface is flush with the screw hole opening and has the same shape, and a filling cavity for filling protective material is reserved between the free end of the sealing body and the screw hole.

[0015] In this solution, the design that the inner connecting end is flush with the screw hole opening and has the same shape ensures a close fit between the sealing body and the screw hole, achieves seamless docking in appearance, greatly enhances the overall aesthetic effect of the restoration device, and makes the restored tooth visually more natural and beautiful; and from a functional point of view, it effectively prevents foreign matter from entering through the gap between the connecting end and the screw hole, enhances the sealing performance of the screw hole, and protects the implant and its surrounding tissues from potential harmful factors such as bacteria and food residues; at the same time, the filling cavity reserved for filling protective material between the free end of the sealing body and the screw hole provides space for filling protective material, and the filled protective material can further enhance the protection of the inside of the screw hole, prevent the central screw from being damaged, and extend the service life of the implant and the restoration device, and can also play a buffering role to a certain extent. When the restoration device is subjected to external forces such as chewing force, the protective material can disperse the stress and reduce the impact on the sealing body and the screw hole structure, thereby maintaining the stability and reliability of the restoration device and ensuring the long-term effect of implant restoration.

[0016] As a further technical solution to the aesthetic functional repair device, when the sealing body is in a conical column shape, a chamfer with an inward pull-out angle of θ is provided on the connecting end of the sealing body and the inner surface, and an outer contour line formed at the connection between the chamfered surface and the inner surface is flush with the screw hole opening and has the same shape, and a filling cavity for filling protective material is reserved between the free end of the sealing body and the screw hole.

[0017] In this solution, a chamfer with an inward pull-out angle of θ is set on the connection end of the sealing body and the inner surface, so that the outer contour line formed by the chamfered surface and the inner surface at the connection is flush with the opening of the screw hole and has the same shape, achieving a natural transition between the sealing body and the screw hole at the connection, making the repaired tooth more delicate and beautiful in appearance, and perfectly blending with the surrounding teeth and oral tissues, improving the overall aesthetic effect. At the same time, this structure enhances the adaptability between the sealing body and the screw hole, effectively preventing external impurities from entering the screw hole, further improving the sealing performance, and protecting the implant and its surrounding tissues. The filling cavity for filling protective material reserved between the free end of the sealing body and the screw hole can strengthen the protection of the inside of the screw hole after being filled with the protective material, avoid damage to the central screw, and extend the service life of the implant restoration.

[0018] A method for manufacturing an aesthetic functional repair device for sealing an implant screw hole comprises the following manufacturing steps:

[0019] Step 1. Obtain the three-dimensional position of the implant and build the upper abutment in the construction software, which lays a precise foundation for subsequent restoration work, ensures that the abutment position is perfectly matched with the implant, and helps to improve the stability of the entire restoration structure;

[0020] Step 2. Process the abutment data into a solid object, fix it on the implant using a central screw, and scan it again to obtain its shape and its relative position to the dentition;

[0021] Step 3. Based on the data obtained in step 2, the bottom crown is constructed to ensure that the shape and size of the bottom crown meet the patient's oral needs;

[0022] Step 4. Process the bottom crown into a solid body and bond it to the solid base obtained in step 2, scan and obtain its shape and its relative position relationship with the dentition, further optimize the accuracy of the overall structure, and enable the restoration device to better integrate into the dentition;

[0023] Step 5. Based on the data obtained in step 4, construct an aesthetic functional restoration device.

[0024] Another method for manufacturing an aesthetic functional restoration device for sealing an implant screw hole includes the following manufacturing steps:

[0025] Step 1. Obtain the three-dimensional position of the implant, build the upper abutment in the construction software, and save it as data 1, which provides a basic reference for subsequent operations and ensures that the abutment design is compatible with the implant;

[0026] Step 2. Create boundaries at the upper and lower ends of the screw hole inside the base data body in step 1, extract the screw hole data, and save it as data 2;

[0027] Step 3. Stretch data 2 upward away from the base, convert it into a solid, and save it as data 3;

[0028] Step 4. Delete the area between the upper and lower boundaries of the base data, close the base based on the upper boundary, and obtain data 4 for optimizing the base shape;

[0029] Step 5. Based on data 4, construct and obtain the bottom crown in the construction software and save it as data 5;

[0030] Step 6. On the basis of data 5, construct the acquisition subject in the construction software and save it as data 6, and determine the main appearance part of the repair device;

[0031] Step 7. Run Boolean operation, "Boolean subtract" data 3 from data 5 to obtain the bottom crown with screw holes, save it as data 7, which is used to accurately locate the screw hole position;

[0032] Step 8. Create boundaries at the upper and lower ends of the screw hole in the acquired data 7, select the area between the two boundaries, extract the screw hole inside data 7 and "Boolean merge" with data 2, and save it as data 8 to ensure the accuracy of the screw hole data;

[0033] Step 9. Cut the end of data 8 close to the implant, reserve space for filling the screw hole with protective material, and offset the cut data 8 in the direction of reducing the diameter to obtain data 9;

[0034] Step 10. Close the openings at both ends of data 9 to obtain a sealing body, and "Boolean merge" it with data 6 to obtain an aesthetic functional restoration device, achieving a perfect combination of the main body and the sealing body. The overall manufacturing method can accurately construct an aesthetic functional restoration device that matches the implant and the dentition, effectively improving the aesthetic effect of the restoration and enhancing the stability and functionality of the restoration device.

[0035] A further technical solution of the above manufacturing method is that the gap between the data 9 and the screw hole is an adhesive space.

[0036] In this solution, a suitable adhesive is filled in this gap space, which can achieve a firm bond between the sealing body and the screw hole, the main body and the bottom crown and other components. On the one hand, it enhances the connection strength between the components, ensuring that the repair device remains stable in the complex environment of the oral cavity, and is not prone to loosening, displacement or falling off, thereby ensuring the durability of the repair effect; on the other hand, the existence of the adhesive space helps to evenly disperse external forces such as chewing force, avoiding stress concentration at a certain point that causes component damage or repair failure.

[0037] A further technical solution of the above-mentioned production method is to optimize the production process, improve production efficiency, reduce costs, and promote the widespread application of the aesthetic functional restoration device in the field of oral restoration. The aesthetic functional restoration device can be processed by three-dimensional printing, CNC cutting, or embedded casting.

[0038] A further technical solution of the above manufacturing method, the sealing body is cylindrical, and its specific construction method is as follows:

[0039] S1. Measure the inner diameter of the screw hole to obtain the measured value x, record the adhesive gap as a, construct a cylinder with a bottom diameter of (x-2a) mm and a height of h1 in the construction software, and export the cylinder as stl format data to ensure that the size of the sealing body is highly compatible with the screw hole and the subsequent bonding process, laying the foundation for achieving a good sealing effect and a stable connection;

[0040] S2. Import the cylinder data into Geomagic Studio and create “center” features on the upper and lower bottom surfaces, which provide key positioning reference points for subsequent accurate fitting and ensure the correct posture of the sealing body in space;

[0041] S3. Construct a cylindrical feature based on the screw hole, create a "center" feature on the upper and lower bottom surfaces of the feature, and fit the cylindrical data to the screw hole through the feature, so that the sealing body can accurately match the screw hole, minimize the gap between the two, enhance the sealing performance, and effectively prevent bacteria, food residues, etc. from entering the screw hole and affecting the health of the implant;

[0042] S4. The cylinder is cut according to the plane shape of the opening of the screw hole so that its upper end is flush with the opening of the screw hole and has the same shape, and a filling space for protective material is reserved between the bottom end and the central screw to obtain a sealing body. This not only achieves a seamless connection in appearance and improves the aesthetic effect of the repair device, but the filling space reserved at the bottom provides a place for the protective material to further protect the central screw, while optimizing the stress distribution and improving the stability and reliability of the repair device during long-term use.

[0043] A further technical solution of the above manufacturing method, the sealing body is in a cone-shaped column, and its specific construction method is as follows:

[0044] S1. In the forward construction stage, a circle with a diameter of (x-2a) mm is first constructed, and the inward "pull-out angle" θ and the pull-out height h2 are set. The generated cone-shaped cylinder is exported as stl format data. This step is precisely designed according to the structural characteristics of the screw hole and the repair requirements. The inward "pull-out angle" θ and the appropriate size can make the cone-shaped sealing body better adapt to the internal shape of the screw hole, enhance the fit with the screw hole wall, and improve the sealing performance;

[0045] S2. Import the cone-cylinder data into Geomagic Studio and create "center" features on the upper and lower bottom surfaces, which provides an important positioning reference for subsequent accurate operations and helps to accurately control the position of the cone-cylinder in space;

[0046] S3. Construct a cylindrical feature based on the screw hole, create a "center" feature on the upper and lower bottom surfaces of the feature, and fit the cone cylinder data to the screw hole through the feature, so that the bottom surface with a diameter of (x-2a) mm faces the direction of the screw hole opening. This step constructs features based on the screw hole and fits the cone cylinder data, so that the cone cylinder can match the screw hole in the correct direction, ensuring that the bottom surface with a diameter of (x-2a) mm faces the direction of the screw hole opening, further optimizing the adaptability of the sealing body and the screw hole, effectively preventing foreign matter from entering the screw hole, and protecting the implant;

[0047] S4. According to the shape of the screw hole, the conical cylinder is cut so that its upper end is flush with the opening of the screw hole and has the same shape, and a filling space for protective material is reserved between its bottom end and the central screw to obtain a sealing body. This step cuts the conical cylinder according to the shape of the screw hole so that its upper end is flush with the opening and has the same shape, which not only achieves a beautiful appearance, but also ensures the tightness of the sealing body and the screw hole at the connection part. The filling space reserved at the bottom provides storage space for the protective material, protects the central screw, and at the same time, when the repair device is subjected to external forces such as chewing force, it can better disperse stress, thereby enhancing the stability and durability of the entire repair device, so that the aesthetic functional repair device can more effectively achieve functional repair of the implant screw hole while meeting aesthetic requirements, thereby improving the repair quality.

[0048] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0049] 1. The main body sealing body of the present invention can seal the screw hole, and at the same time, the outer surface of the main body can restore the shape and function of the missing natural tooth, avoiding the adverse effect of the obvious boundary between the sealing material and the crown in the traditional solution on the aesthetic effect;

[0050] 2. The present invention does not need to reserve screw holes on the outside, thus avoiding the adverse effects of screw holes on the overall mechanical properties of the crown, making the crown structure more complete, the mechanical properties more stable, and being able to better withstand external forces such as chewing force, thereby reducing the risk of damage caused by structural weaknesses; whereas in the prior art, the reserved screw holes on the crown surface will affect its mechanical properties, and the crown completely covering the screw holes will be inconvenient to handle when complications occur;

[0051] 3. The sealing body of the present invention extends into the screw hole, thereby enhancing the retention force and reducing the risk of falling off. At the same time, the sealing body can be cylindrical or conical, and can fit tightly with the screw hole, effectively preventing foreign matter from entering the screw hole;

[0052] 4. The present invention can be bonded to the bottom crown, avoiding the falling off of the sealing material. If complications such as breakage and fracture occur during use, it can be directly removed and replaced without removing the abutment. The operation is convenient and quick, which improves the convenience and flexibility of repair. Compared with the complicated operation of completely breaking the crown and removing it together with the abutment in the prior art when complications occur when the crown completely covers the screw hole, the present invention provides patients and doctors with a simpler and more effective solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0054] Figure 1 It is a schematic diagram of the structure of the main body of the present invention when it is applied to the front teeth;

[0055] Figure 2 It is a schematic diagram of the screw hole of the present invention being located on the lip side of the bottom crown;

[0056] Figure 3 It is a schematic diagram of the pore sealing body of the present invention;

[0057] Figure 4 It is a schematic diagram of the structure of the present invention when it is applied to anterior teeth;

[0058] Figure 5 A schematic diagram of using the device of the present invention to repair the screw hole on the labial side of the anterior teeth;

[0059] Figure 6 This is a schematic diagram of the abutment and the bottom of the crown with screw holes after external bonding;

[0060] Figure 7 It is a schematic diagram of the structure of the present invention when it is applied to posterior teeth;

[0061] Figure 8 It is a schematic diagram of using the present invention to repair the screw hole of the occlusal surface of the posterior teeth.

[0062] Marks and corresponding parts names in the attached drawings:

[0063] 1-main body, 2-bottom crown, 3-screw hole, 4-sealing body. DETAILED DESCRIPTION

[0064] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0065] Example 1

[0066] This embodiment 1 provides an aesthetic functional repair device for closing an implant screw hole, such as Figure 1-Figure 4 As shown, it includes a main body 1 and a sealing body 4. The main body 1 provides the restoration device with an external shape and a connection basis with the bottom crown 2, and the sealing body 4 is mainly responsible for closing the screw hole 3. The two work together to enable the restoration device to meet aesthetic requirements and have good functional characteristics.

[0067] Among them, Figure 1 As shown, the main body 1 includes an outer surface and an inner surface, and the outer surface is formed with a natural tooth shape for reconstructing the missing site. This shape can be coordinated with other natural teeth in the patient's mouth in appearance, so that the repaired teeth look natural and beautiful, and can also cooperate normally with the opposing teeth in terms of occlusal function, thereby ensuring the patient's chewing efficiency; and the inner surface matches the non-screw hole shape part of the bottom crown 2, which can ensure that the repair device has good stability after installation and is not prone to displacement or loosening, thereby ensuring the durability of the repair effect, and the shape and size of the inner surface are adapted to the bottom crown 2. Through precise design and processing, the two can be seamlessly connected, thereby enhancing the overall structural strength of the repair device, while also helping to disperse the chewing force and protect the implant and surrounding tissues.

[0068] Among them, see Figure 2 and Figure 4-Figure 5 As shown, one end of the sealing body 4 is connected to the inner surface, and the other end of the sealing body 4 is columnar and extends into the screw hole 3 of the bottom crown 2;

[0069] The shape of the sealing body 4 can be cylindrical or conical. The cylindrical sealing body has a simple structure and is relatively easy to manufacture. It can effectively seal the screw hole and prevent foreign matter from entering the interior of the screw hole. At the same time, it also has a certain stability in cooperation with the screw hole. The conical sealing body has better adaptability, and its gradually narrowing shape can better fit the internal structure of the screw hole. While providing a good sealing effect, it can also enhance the retention force and reduce the risk of the sealing body falling off from the screw hole. It is particularly suitable for situations with high retention requirements.

[0070] In some embodiments, when the sealing body 4 is cylindrical, the connecting end of the sealing body 4 and the inner surface is flush with the opening of the screw hole 3 and has the same shape. The design with the same shape ensures a tight fit between the sealing body 4 and the screw hole 3, and achieves a seamless connection in appearance. At the same time, a filling cavity for filling protective material is reserved between the free end of the sealing body 4 and the screw hole 3. Usually, a 2 mm high polytetrafluoroethylene protective material is filled into the screw hole 3 and compacted. When the repair device is subjected to external forces such as chewing force, the protective material can disperse the stress and reduce the impact on the structure of the sealing body 4 and the screw hole 3.

[0071] In some embodiments, when the sealing body 4 is in a conical column shape, the connecting end of the sealing body 4 and the inner surface is provided with a chamfer with an inward pull-out angle of θ, and the angle θ can be 30 degrees-60 degrees, and the specific value can be determined according to the actual situation. At the same time, the outer contour line formed by the chamfered surface and the inner surface at the connection is flush with the opening of the screw hole 3 and has the same shape. A filling cavity for filling protective material is reserved between the free end of the sealing body 4 and the screw hole 3. Usually, a 2mm high polytetrafluoroethylene protective material is filled into the screw hole 3 and compacted. After filling the protective material, the filling cavity can enhance the protection of the inside of the screw hole.

[0072] In some embodiments, the main body 1 and the sealing body 4 are made of the same material, which can be any one of zirconia, alumina, composite ceramics, lithium disilicate glass ceramics, leucite glass ceramics, feldspar glass ceramics, polyetheretherketone and polyetherketoneketone.

[0073] Example 2

[0074] Since the dental area in the front of the mouth, including the central incisor, lateral incisor and canine, has the main function of cutting food and aesthetics, the application of any restorative device in the front teeth area needs to focus on aesthetic factors to achieve a natural and aesthetic restoration effect that is consistent with the surrounding teeth and gums. Under this premise, this embodiment provides an aesthetic functional restoration device for closing implant screw holes based on the technical solution of Example 1. The aesthetic functional restoration device can be highly personalized according to the shape, size, color of the central incisor and lateral incisor, as well as the individual age and tooth wear. When the screw hole 3 passes through the artificial gums, the outside of the main body 1 can simulate the function of the gum morphology, so that the restored teeth and the surrounding gum tissue have a natural transition, and the appearance is almost the same as the natural front teeth, which greatly enhances the patient's aesthetics and self-confidence. During the installation process, the bottom crown 2 is first bonded to the abutment in vitro, such as Figure 2 As shown in the figure, make the screw hole 3 located on the labial side of the bottom crown 2, then remove the healing abutment installed during the operation to expose the implant connection interface, place the abutment and the bottom crown 2 together on the intraoral implant, and apply a torque of 35Ncm to tighten the central screw; fill the screw hole 3 with 2mm high polytetrafluoroethylene protective material and compact it; try it on as shown in the figure. Figure 4 The aesthetic functional restoration device shown in the figure makes the sealing body 4 be positioned in the screw hole 3 on the labial side. At the same time, the main body 1 cooperates with the bottom crown 2, and the main body 1 and the bottom crown 2 are tightly fitted. The aesthetic functional restoration device is bonded to the bottom crown 2 as a whole by using an adhesive to complete the aesthetic restoration of the screw hole on the labial side of the anterior teeth. Figure 5 As shown, it effectively solves the aesthetic problem caused by the existence of screw holes in the anterior teeth area, and its stable structure can also ensure normal occlusal function.

[0075] Example 3

[0076] Since the posterior teeth include molars or premolars, which mainly bear the chewing function, in order to ensure a good occlusal relationship, during installation, the bottom crown 2 and the abutment are also bonded first, such as Figure 6 As shown in the figure, the screw hole 3 is located on the occlusal surface of the bottom crown 2. Remove the healing abutment installed during the operation to expose the implant connection interface. Put the abutment and the bottom crown 2 together on the implant in the mouth, apply a torque of 35Ncm to tighten the central screw; fill the screw hole 3 with 2mm high polytetrafluoroethylene protective material and compact it; try it on. Figure 7 The aesthetic functional restoration device shown in the figure makes the sealing body 4 be positioned in the screw hole 3 of the occlusal surface. At the same time, the main body 1 cooperates with the bottom crown 2, and the main body 1 and the bottom crown 2 are tightly fitted. The aesthetic functional restoration device is bonded to the bottom crown 2 using an adhesive to complete the functional restoration of the screw hole of the occlusal surface of the posterior teeth. Figure 8 As shown, the stability and durability of the posterior tooth restoration device are enhanced, and it can withstand greater chewing forces. While ensuring the function of the posterior teeth, it also maintains the overall aesthetics of the posterior tooth area, so that the posterior tooth restoration achieves a balance between aesthetics and function, and provides patients with a comprehensive posterior tooth implant restoration solution.

[0077] Example 4

[0078] This embodiment provides a manufacturing method for any one of the aesthetic functional repair devices for sealing implant screw holes in Embodiments 1 to 3, including the following manufacturing steps:

[0079] Step 1. Use oral 3D scanning equipment (such as oral CBCT, etc.) to accurately scan the position of the implant in the patient's mouth, obtain the 3D coordinate data of the implant in the mouth and related information of the surrounding alveolar bone and other tissues, and build the upper abutment in the construction software (such as 3Shape, Exocad, etc.). The height, angle, connection method and other factors of the abutment need to be considered during the design process, which lays a precise foundation for subsequent restoration work, ensures that the abutment position is perfectly matched with the implant, and helps to improve the stability of the entire restoration structure;

[0080] Step 2. According to the abutment data designed in step 1, select a suitable processing method (such as 3D printing or CNC cutting or embedded casting) to process the abutment data into a physical abutment, accurately install and fix the processed physical abutment on the implant in the patient's mouth through the central screw, tighten the screw according to the specified torque value to ensure that the abutment is firmly installed. After the installation is completed, use the 3D scanning equipment to scan the mouth again. This scan focuses on the actual shape of the abutment in the mouth and its relative position relationship with the surrounding teeth. The scanned data will be used for the subsequent design of the bottom crown 2 to ensure that the bottom crown 2 can accurately fit the abutment and the surrounding teeth;

[0081] Step 3. Import the data obtained in step 2 containing the relative position relationship between the abutment and the dentition into the design software, and design the shape and structure of the bottom crown 2 based on the abutment data. The design of the bottom crown 2 needs to consider factors such as the connection method with the abutment, the contact relationship with the adjacent teeth, and the position of the reserved screw holes. For example, the connection part between the bottom crown 2 and the abutment should be designed to fit tightly to ensure the stability of the connection; the contact with the adjacent teeth should conform to the normal physiological morphology of the dentition to avoid problems such as food impaction; the position of the screw hole 3 should be accurately reserved according to the design of the abutment, and the installation space of the subsequent sealing body 4 should be taken into account;

[0082] Step 4. According to the bottom crown 2 data designed in step 3, the bottom crown 2 is processed into a solid body by using corresponding processing technology (such as CNC cutting, casting, etc.). After processing, in a clinical environment, a special adhesive is used to bond the bottom crown 2 to the installed solid abutment. The bonding process must be carried out strictly in accordance with the instructions for use of the adhesive to ensure the bonding quality, such as controlling the amount of adhesive, bonding time and pressure.

[0083] After bonding is completed, the oral cavity is scanned again to obtain the precise shape and relative position relationship data of the bottom crown 2 and the dentition. These data will provide an important basis for the design of the main body of the aesthetic functional restoration device, so that the restoration device can be better integrated with the entire oral environment and meet the dual requirements of aesthetics and function.

[0084] Step 5. Import the data obtained in step 4 into the design software and start building the aesthetic functional restoration device. First, design the main body 1. According to the patient's tooth loss, adjacent tooth shape, age, gender and other factors, determine the natural tooth shape outside the main body, such as the central incisor, lateral incisor, canine, premolar or molar shape, and make personalized adjustments, including the shape, size, color of the teeth and simulated gum shape. At the same time, design the inner surface of the main body 1 so that it can fit tightly with the non-screw hole part of the bottom crown 2 to ensure the stability of the restoration device after installation;

[0085] Then, the sealing body 4 is designed, and the shape (such as cylindrical or conical) and size of the sealing body 4 are determined according to the size and shape of the screw hole 3, and finally an aesthetic functional repair device is obtained, such as Figure 4 or Figure 7 shown.

[0086] Example 5

[0087] Since the gap between the sealing body 4 and the screw hole 3 in Example 4 cannot be set separately, and the generation of the sealing body 4 will fail when the screw hole 3 is scanned incompletely, this Example 5 provides another method for manufacturing an aesthetic functional repair device for sealing an implant screw hole, comprising the following manufacturing steps:

[0088] Step 1. Use oral 3D imaging equipment (such as oral CBCT) to scan the implant in the patient's mouth to obtain accurate 3D position information of the implant, including its depth, angle in the alveolar bone, and spatial relationship with surrounding tissues. Import these data into professional oral restoration construction software (such as 3Shape, Exocad, etc.), and start building the upper abutment in the software environment according to the specifications of the implant and the patient's oral anatomical structure. When designing, factors such as the height of the abutment and the shape of the connecting part should be considered to ensure that the connection between the abutment and the implant is stable and can provide a suitable foundation for subsequent restorations. After the construction is completed, the abutment data is saved as data 1;

[0089] Step 2. In Geomagic Studio, open Data 1, use the "Spline Boundary" function to select the screw hole 3 structure inside the base data body, and create boundary lines at its upper and lower ends. These two boundary lines clearly define the range of screw hole 3, and then use the software's extraction function to extract the data of screw hole 3 separately and save it as Data 2;

[0090] Step 3. Select data 2, use the stretching function of the construction software, set the stretching direction to the direction away from the base, and set the stretching height according to actual needs so that it can meet the needs of subsequent construction of sealing bodies and other structures. After the stretching is completed, the stretched structure is converted into solid data. This solid data will be used as one of the basic structures for constructing the sealing body 4 and saved as data 3;

[0091] Step 4. Return to the abutment data represented by data 1, delete the data between the upper and lower boundaries of the abutment data (i.e. the area where the screw hole 3 was originally located), and only retain the abutment portion above the upper boundary. Then, based on this upper boundary, use the closing function of the construction software to close the opening of the remaining part of the abutment, forming a complete abutment morphology data with the screw hole area removed, and save it as data 4;

[0092] Step 5. Open data 4 and start to build the bottom crown 2 based on it. According to the patient's dentition, the shape of the adjacent teeth, the occlusal relationship and other factors, design the bottom crown 2's outline, thickness, and the shape of the connection with the abutment. During the construction process, ensure that the bottom crown 2 and the abutment can fit closely, and the position and shape in the mouth meet the aesthetic and functional requirements. After the construction is completed, save the bottom crown data as data 5;

[0093] Step 6. Construct the main body 1 of the aesthetic functional restoration device based on the data 5. According to the position and type of the patient's missing teeth (such as front teeth or back teeth), Figure 1As shown, the natural tooth shape of the outer surface of the main body 1 is designed, and the personalized design is carried out considering individual differences such as tooth wear caused by age and the manifestation of gender differences in tooth shape. At the same time, the inner surface of the main body 1 is constructed so that it can accurately match the non-screw hole part of the bottom crown 2 to ensure stability after installation. After the construction is completed, the data of the main body 1 is saved as data 6;

[0094] Step 7. Perform Boolean operation in Geomagic Studio. Set data 5 (bottom crown data) as the object to be operated and data 3 (screw hole related entity data after stretching conversion) as the object to be subtracted, and execute the "Boolean Subtract" command, such as Figure 2 As shown, the bottom crown 2 data with accurate screw hole 3 position is obtained. This data will play a key role in the subsequent matching construction of the sealing body 4 and the bottom crown 2, and is saved as data 7;

[0095] Step 8. In Geomagic Studio, open data 7 and use the "Spline Boundary" function to create boundary lines at the upper and lower ends of screw hole 3. Then select the area between the two boundary lines, extract the screw hole 3 data in the area, and perform a "Boolean Merge" operation on the extracted screw hole 3 data and the previously saved screw hole 3 data 2. The purpose is to integrate and optimize the screw hole data and ensure the accuracy and completeness of the screw hole data. The merged data is saved as data 8.

[0096] Step 9. In Geomagic Studio, use the "Plane Crop" function to crop data 8, crop the part close to one end of the implant, and reserve 2mm of space for filling the screw hole 3 protective material (such as polytetrafluoroethylene, etc.) according to the need. Then offset the cropped data in the direction of reducing the diameter. The offset distance is determined according to factors such as the designed adhesive thickness. In this embodiment, the offset value is 0.04mm. The data obtained after the offset is saved as data 9. The gap between data 9 and the screw hole 3 is the adhesive space, and the adhesive space is 0.04mm.

[0097] Step 10. In Geomagic Studio, use the "Plane Fill" function to close the data 9 and close its two ends, thus obtaining the data model of the sealing body 4. Finally, perform a "Boolean Merge" operation on the sealing body 4 data and data 6 (main body data) to integrate the sealing body 4 and the main body 1 into a complete aesthetic functional restoration device data model, which can be used for subsequent processing and manufacturing, such as making the restoration device into a physical product through 3D printing, CNC cutting or embedded casting.

[0098] Example 6

[0099] This embodiment provides a method for manufacturing an aesthetic functional repair device for sealing an implant screw hole. The difference between this method and Embodiment 4 or Embodiment 5 is that the sealing body 4 can also be constructed in the following manner:

[0100] When the sealing body 4 is cylindrical, the construction method is as follows:

[0101] S1. First, use a professional measuring tool to accurately measure the inner diameter of the screw hole 3 on the bottom crown 2 to obtain the measured value x. At the same time, determine the value of the adhesive gap a based on the design requirements of the restoration device and the characteristics of the selected adhesive. Open the construction software (such as solidworks, etc.), and use the cylinder creation tool to operate in the 3D modeling environment of the software. Enter the bottom diameter parameter as (x-2a) mm and the height parameter as h1 (h1 should be greater than the height of the screw hole, which is determined according to the screw hole depth, the matching depth requirements of the sealing body and the screw hole, etc.) to build a cylindrical model. After the construction is completed, in the file export function of the software, choose to export the cylindrical model data as an STL format file so that it can be subsequently imported into the Geomagic Studio software for processing;

[0102] S2. Import the cylinder data into Geomagic Studio, and execute this command on the upper and lower bottom surfaces of the cylinder to create the "center" feature points of the upper and lower bottom surfaces. These "center" feature points will serve as an important reference for subsequent fitting operations to determine the position and posture of the cylinder in space;

[0103] S3. In Geomagic Studio, construct a cylindrical feature based on the screw hole. Similarly, use the command to create a "center" feature to create the corresponding "center" feature point on the upper and lower bottom surfaces of the constructed screw hole cylindrical feature.

[0104] Then, using the fitting function in the software, the cylinder data that has been imported and created with the "center" feature is accurately fitted based on the "center" feature point of the screw hole cylinder feature and other geometric correspondences, so that the cylinder data can achieve the best match with the screw hole 3 in terms of spatial position and shape, ensuring the fit between the sealing body 4 and the screw hole 3;

[0105] S4. Crop the cylinder that has been fitted to the position of screw hole 3. Use the cropping tool of Geomagic Studio software to accurately set the cropping plane and cropping range according to the opening plane morphology information of screw hole 3. Crop the upper end of the cylinder to be flush with the opening of screw hole 3, and ensure that the upper end surface shape after cropping is completely consistent with the opening shape of the screw hole to achieve a good appearance and sealing effect.

[0106] At the same time, when cutting the bottom of the cylinder, according to the position and size information of the central screw, a suitable space should be reserved for filling with protective materials (such as polytetrafluoroethylene, etc.). The size of this space should not only meet the filling requirements of the protective material, but also should not affect the overall coordination stability of the sealing body and the screw hole. After cutting, the final cylindrical sealing body 4 model data is obtained.

[0107] When the sealing body 4 is in a cone-shaped column, the construction method is as follows:

[0108] S1. First accurately measure the inner diameter of the screw hole 3, obtain the measured value x, and determine the adhesive gap a. Then turn on the forward modeling function in the construction software (such as solidworks, etc.), first build a circle with a diameter of (x-2a) mm, which will serve as the basic contour of the bottom surface of the conical cylindrical sealing body 4, and then in the model property settings of the software, give the circle an inward "pull-out angle θ" and "pull-out height h2" (the values ​​of θ and h2 are determined according to the depth of the screw hole 3, the taper requirements, and the matching characteristics of the sealing body and the screw hole, etc.), and use these parameter settings to stretch the circle to form a conical cylinder. After completing the construction of the conical cylinder, export its data as an STL format file for subsequent import into Geomagic Studio software processing;

[0109] S2. Open Geomagic Studio software, select the previously exported cone cylinder STL format data file in its import function module, import the cone cylinder data into the software workspace, and use the feature creation tool in the software to create "center" features on the upper and lower bottom surfaces of the imported cone cylinder. These "center" features will provide key positioning reference points for subsequent fitting operations, which will help to accurately adjust the position and posture of the cone cylinder in space;

[0110] S3. According to the actual situation of the screw hole 3 in the bottom crown 2, construct a cylindrical feature in the Geomagic Studio software to simulate the screw hole. When constructing, the relevant size, position and other information of the screw hole must be accurately input to ensure that the cylindrical feature can accurately represent the geometric shape of the screw hole. Similarly, create a "center of circle" feature on the upper and lower bottom surfaces of the constructed screw hole cylindrical feature. Then use the fitting function of the software to fit the cone cylinder data with the screw hole cylindrical feature. During the fitting process, special attention should be paid to ensure that the bottom surface of the cone cylinder with a diameter of (x-2a) mm is accurately facing the direction of the screw hole opening. Through the "center of circle" feature and other geometric correspondences, the cone cylinder and the screw hole are highly matched in spatial position and shape to ensure good fit between the sealing body and the screw hole;

[0111] S4. Use the cropping tool of Geomagic Studio to crop the fitted cone cylinder. Then, based on the opening plane morphology information of screw hole 3, accurately determine the cropping plane and cropping range. Crop the upper end of the cone cylinder to be flush with the screw hole opening and completely consistent in shape, so as to achieve the ideal appearance effect and sealing performance.

[0112] When cutting the bottom of the cone, a suitable space is reserved for filling with protective materials (such as polytetrafluoroethylene, etc.) according to the position and size of the central screw. The size of this space must take into account both the filling requirements of the protective material and the overall stability of the sealing body. After cutting, a cone-shaped sealing body data model that meets the requirements is obtained.

[0113] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An aesthetic functional restoration device for closing an implant screw hole, characterized in that: include: A main body (1), the main body (1) comprising an outer surface and an inner surface, the outer surface being formed with a natural tooth shape for reconstructing a missing site, and the inner surface matching the non-screw hole shape portion of the bottom crown (2); A sealing body (4), one end of which is connected to the inner surface, and the other end of which is columnar and extends into the screw hole (3) of the bottom crown (2).

2. The aesthetic functional restoration device for sealing implant screw holes according to claim 1, characterized in that: The sealing body (4) is cylindrical or conical.

3. The aesthetic functional restoration device for sealing implant screw holes according to claim 2, characterized in that: When the sealing body (4) is cylindrical, the connection end of the sealing body (4) with the inner surface is flush with the opening of the screw hole (3) and has the same shape, and a filling cavity for filling protective material is reserved between the free end of the sealing body (4) and the screw hole (3).

4. The aesthetic functional restoration device for sealing implant screw holes according to claim 2, characterized in that: When the sealing body (4) is in a conical column shape, the connection end of the sealing body (4) with the inner surface is provided with a chamfer with an inward pull-out angle of θ, the outer contour line formed at the connection between the chamfered surface and the inner surface is flush with the opening of the screw hole (3) and has the same shape, and a filling cavity for filling protective material is reserved between the free end of the sealing body (4) and the screw hole (3).

5. A method for manufacturing an aesthetic functional repair device for sealing an implant screw hole according to any one of claims 1 to 4, characterized in that: The production steps include: Step 1. Obtain the three-dimensional position of the implant and build the upper abutment in the construction software; Step 2. Process the abutment data into a solid object, fix it on the implant using a central screw, and scan it again to obtain its shape and its relative position to the dentition; Step 3. Based on the data obtained in step 2, construct the bottom crown (2); Step 4. Process the bottom crown (2) into a solid body and bond it to the solid base obtained in step 2, and scan to obtain its shape and its relative position relationship with the dentition; Step 5. Based on the data obtained in step 4, construct an aesthetic functional restoration device.

6. A method for manufacturing an aesthetic functional repair device for sealing an implant screw hole according to any one of claims 1 to 4, characterized in that: The production steps include: Step 1. Obtain the three-dimensional position of the implant, build the upper abutment in the construction software, and save it as data 1; Step 2. Create boundaries at the upper and lower ends of the screw hole (3) inside the base data body in step 1, extract the screw hole (3) data, and save it as data 2; Step 3. Stretch data 2 upward away from the base, convert it into a solid, and save it as data 3; Step 4. Delete the area between the upper and lower boundaries of the base data, close the base based on the upper boundary, and obtain data 4; Step 5. Based on data 4, construct and obtain the bottom crown (2) in the construction software and save it as data 5; Step 6. Based on data 5, construct the acquisition subject (1) in the construction software and save it as data 6; Step 7. Run Boolean operation, "Boolean subtract" data 3 from data 5, and obtain the bottom crown (2) with screw hole (3), and save it as data 7; Step 8. Create boundaries at the upper and lower ends of the screw hole (3) in the acquired data 7, select the area between the two boundaries, extract the screw hole (3) inside data 7 and "Boolean merge" with data 2, and save them as data 8; Step 9. Cut the data 8 close to one end of the implant, reserve space for filling the screw hole (3) with protective material, and offset the cut data 8 in the direction of reducing the diameter to obtain data 9; Step 10. Close the openings at both ends of data 9 to obtain a sealing body (4), which is then "Boolean merged" with data 6 to obtain an aesthetic functional restoration device.

7. The method for manufacturing an aesthetic functional restoration device for sealing an implant screw hole according to claim 6, characterized in that: The gap between the data 9 and the screw hole (3) is the adhesive space.

8. The method for manufacturing an aesthetic functional restoration device for sealing an implant screw hole according to claim 6, characterized in that: The aesthetic functional restoration device can be processed by three-dimensional printing, CNC cutting or embedded casting.

9. The method for manufacturing an aesthetic functional repair device for sealing an implant screw hole according to claim 6, characterized in that: The pore sealing body (4) is cylindrical, and its specific construction method is as follows: S1. Measure the inner diameter of the screw hole (3) to obtain the measured value x, record the adhesive gap as a, construct a cylinder with a bottom diameter of (x-2a) mm and a height of h1 in the construction software, and export the cylinder as stl format data; S2. Import the cylinder data into Geomagic Studio and create "center" features on the upper and lower bottom surfaces; S3. Construct a cylindrical feature based on the screw hole (3), create "center" features on the upper and lower bottom surfaces of the feature, and fit the cylindrical data to the screw hole (3) through the feature; S4. Cut the cylinder according to the open plane shape of the screw hole (3), so that its upper end is flush with the opening of the screw hole (3) and has the same shape, and a filling space for protective material is reserved between its bottom end and the central screw to obtain a sealing body (4).

10. The method for manufacturing an aesthetic functional restoration device for sealing an implant screw hole according to claim 6, characterized in that: The sealing body (4) is in the shape of a cone column, and its specific construction method is as follows: S1. In the forward construction stage, first construct a circle with a diameter of (x-2a) mm, set the inward "extraction angle" θ, and the extraction height h2, and export the generated cone cylinder into stl format data; S2. Import the cone-cylinder data into Geomagic Studio and create "center" features on the upper and lower bottom surfaces; S3. Construct a cylindrical feature based on the screw hole (3), create "center" features on the upper and lower bottom surfaces of the feature, and fit the cone cylinder data to the screw hole (3) through the feature, so that the bottom surface with a diameter of (x-2a) mm faces the direction of the opening of the screw hole (3); S4. Cut the cone-shaped column according to the shape of the screw hole (3), so that its upper end is flush with the opening of the screw hole (3) and has the same shape, and a filling space for protective material is reserved between its bottom end and the central screw to obtain a sealing body (4).

Images